SELF-GRAVITATING ISOTHERMAL SPHERES OF CARNAHAN-STARLING FLUID

In astrophysics, great attention is paid to self-gravitating spheres of fluids, which serve as models of stars and gaseous planets. Such models usually described the fluids as comprising of a perfect gas. Here we explore a self-gravitating cloud of a real gas that comprises of hard spheres, a fluid...

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Bibliographic Details
Published in:Journal of the Washington Academy of Sciences 2019-07, Vol.105 (2), p.13-24
Main Author: Lipscombe, T. C.
Format: Article
Language:English
Subjects:
Astrophysics
Computational fluid dynamics
Equations of state
Fluids
Gases
Gravitation
Ideal gas
Interstellar gas
Interstellar matter
Nonpolar gases
Phase transitions
Real gases
Spheres
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Summary:In astrophysics, great attention is paid to self-gravitating spheres of fluids, which serve as models of stars and gaseous planets. Such models usually described the fluids as comprising of a perfect gas. Here we explore a self-gravitating cloud of a real gas that comprises of hard spheres, a fluid modeled by the Carnahan-Starling equation of state. As such, we present a simple model that provides an application of real gases that might be of interest in the classroom, and which might find applications in the study of clouds of nonpolar gases, such as can be found in the interstellar medium.
ISSN:0043-0439
2573-2110